1 definition by Amethyst crystal

A female who sleeps with a married man or some one else's man. Typically called a homewrecker, the other women. Fuck stains are very commonly used to describe a mistress, or someone who sleeps with married men, or any other type of man that is not hers. They are the lowest of the lowest twats out there.
Mary is a fuck stain for sleeping with all those married men.

Look at the fuck stain hitting on the married men.
You're nothing more than a fuck stain Mary.
by Amethyst crystal October 5, 2009
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